>tr|J3QKN0|J3QKN0_HUMAN Ubiquitin B OS=Homo sapiens GN=UBB MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYN IQKESTLHLVLRLRGGMQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLI FAGKQLEDGRTLSDYNIQKESTLHLVLRLRGGMQIFVKTLTGKTITLEVEPSDTIENVKA KIQDKEGIPPDQQRLIFAGKQLEDGR